PATRONS at a bar in Sydney have foiled masked robbers by throwing stools at them. Three men wearing hooded jackets and with their faces disguised, entered the hotel in Abercrombie Street, Chippendale, just after 9pm (AEST) yesterday, police said. One of them was armed with a large knife and threatened a female worker, demanding cash while his companions guarded the bar. But a patron confronted the man and a struggle ensued, during which other drinkers began throwing bar stools at the men. All three offenders fled empty-handed and were last seen running down Eveleigh Street. A crime scene was established...